Activity and selectivity of nickel-zeolite catalysts as affected by nickel configuration
Two types of zeolite-supported nickel catalysts, one (Type T) made from the anhydrous form of bis(2,4-pentanedionato)nickel(II) acetylacetonate and the other (Type M) made with the dihydrate of nickel(II) acetylacetonate, and both having HY, NH/sub 4/Y, or NaY zeolites as supports were characterized by X-ray fluorescence, oxygen and carbon monoxide chemisorption, electron microscopy, and electron spectroscopy. NaY-supported catalysts of both nickel types showed catalytic activity for the vapor-phase hydrogenation of benzene in a stainless steel microreactor at 1 atm. NaY-supported Type M catalyst showed some activity for cyclohexane dehydrogenation, but both Types M and T were inactive for the hydrogenalysis of methylcyclopentane. Type M showed a higher activity than Type T for benzene hydrogenation, but Type T was slightly more selective to cyclohexane formation. HY and NH/sub 4/Y supports gave inactive catalysts.
- OSTI ID:
- 6462977
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKANES
AROMATICS
BENZENE
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
CONFIGURATION
CYCLOALKANES
CYCLOHEXANE
DEHYDROGENATION
ELEMENTS
HYDROCARBONS
HYDROGENATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
METALS
MINERALS
NICKEL
ORGANIC COMPOUNDS
REACTION KINETICS
STRUCTURAL CHEMICAL ANALYSIS
TRANSITION ELEMENTS
ZEOLITES